Carbureter for hydrocarbon-engines.



No. 856,958. PATENTED JUNE 11, 1907.

GARBURETBR FOR HYDROCARBON ENGINES.

APPLIUATION FILED AUG. a, 1904.

2 SHEETS-SHEET 1.

PATENTBD JUNE 11. 1907. T. HUBER.

' APPLIOATION FILED AUG. 8, 1904.

2 SHEETS-SHEET 2.

A GARBURETER FOR HYDROGARBON ENGINES.

TONY HUBER, OF BILLANCOURT, FRANCE.

OAREURETER FOR HYDROCARBON-ENGINES.

Specification of Letters Patent.

Patented June 11, 1907.

Application filed August 8, 1904. Serial No. 220,017.

To all whom it Wray concern:

Beit known that I, TONY HUBER, engineer, a citizen of the French Republic, residing at Billancourt, Seine, France, have invented cer- -taiin new and useful Improvements in Carbureters for Hydrocalbori-Engines, ol whichl the following is a specification.

This invention relates to an improvement in those carbureters in which the feed is autively driven valves are used so as to open according to the position of the piston and not according to the reduction of pressure caused by the piston in its suction stroke. tomatie valve has however to be abandoned if the volumes swept by the piston are very large, for these require the employment of valves of large diameters the many disadvantages of which are well fknown. If however it could be located on the feed pipe behind the valve controlled by the motor, so as to be away from any cause of deterioration it would again prove as eliicient as usual. It follows therefrom that its proper position is in the carbureter itself wherein it may serve for one or more cylinders. This very light valve without inertia will preserve all the advantages of the automatic inlet valve. When the speed of the motor varies, the quantity of liquid fuel given out by the spraying nozzle does not remain primortional to the quantity of air introduced into the cylinder by the successive suctions and in order to preserve a mixture of constant composition it is necessary to add aln additional quantity of air to the gaseous mixture before it enters the cylinders. As the composition of the gaseous mixture corresponding to normal rate ol" working is modified by atmospheric conditions, the additional air inlets should be capable of being operated by hand independently of the automatic regulation due to the sucking action of the piston.

The accompanying drawings show a carbureter constructed in accordance with these principles.

Alate the additional introduction of air.

The au- In these drawings: Figure 1 is a vertical section of the carbure ter, and Fig. 2 a section on line A-A of Fig,- l.

In these drawings, a is the air inlet of the mixture chamber, i) is the spraying nozzle; the admission of the mixture takes place through the 'medium of valve c which is opened automatically by the suction stroke of the piston. The stem d of this valve carries a hollow piston c in the walls of which are provided ports f corresponding to rectangular openings g in the cylinder lt in which the piston e nieves. These portsfserve to reguy A spring i tends constantly to bring the valve c on to its seat. The n'iovemcnts of the piston d uncover more or less the portsf but it is indispensable that these ports should never be completely closed as the permanent opening is a function of the possible minimum speed of the motor. h'loreover a sleeve arranged externally on the aforesaid cylinder h can be adjusted by hand so as to open more or less the openings o according to the variations of the atmospheric pressure. The additional air ports may be of variable form.

Having now particularly described and ascertained the nature of this invention and in what manner the saine is to be performed I 1declare that what I claim is:

l. A carbureter for hydrocarbon engines comprising a casing forming a mixing chamber adapted to communicate with the engine and having a permanently-open air inlet, a

spraying element arranged in said chamber in operative relation with respect to said air inlet, a valve interposed between the chambei' and the engine and arranged in the path of the gases and controlled by the suctionstroke of the piston of the engine, and a piston connected with the valve and adapted to control the admission of an additional supply of air independent of the supply through said air inlet.

2. A carburetcr for hydrocarbon engines comprising 'a casing forming a mixing chamber adapted to communicate with the engine and having a normally-open air inlet and a rogulal able air inlet independent of the normally-open Aair inlet, a spraying device arranged in operative relation with respect to said normally-open air inlet, a valve interposed between thc outlet of said chamber and the cylinder ot the engine and operated by the suction-stroke of the engine, and means operated by said valve for regulating the IOO IIO

comprising a casing forming a mixing chamber adapted to communicate with the engine,

said mixing chamber normally open to the atmosphere, a spraying device arranged Within said chamber at a point removed from the opening thereof," a valve interposed between the mixing chamber and the engine, arranged in the path of the gases and adapted to be operated by the suction-stroke of the engine, and means connected With and operated by the valve for regulating an additional supply of air to the gas.

4. A carbureter for hydrocarbon engines comprising a casing having an air inlet and further provided with a regulatable inlet independent of the first-mentioned inlet, a spraying device arranged in said casing in operative relation With respect to the lirstmentioned air inlet, a valve interposed between 'said casing and the engine arranged in the path of the gases and'operated by the suction-stroke of the engine, .and a hollow piston provided with an opening, said piston connected with and operated by said valve and adapted to regulate the supply of anadditional quantity of air through said regulatable air inlet.

5. A carbureter for hydrocarbon engines, comprising a casing forming a mixing chamber |adapted tocomrnunicate with the engine, said mixing chamber having a permanentlyopen air inlet and further provided with a regulatable airinlet independent of the firstmentioned air inlet, a spraying device aresente ranged in said chamber in operative relation With respect to the first-mentioned air inlet,

-a valve interposed between the said chamber' ,and the engine, arranged in the path of the gases and operated by the suction stroke of the engine, a hollow piston provided With an opening, said. piston connected with and op erated by said valve and adapted to regulate the supply of an additional quantity of air through said regulatable air inlet, and a spring acting to constantly move said valve with said regulatable air inlet, said'piston adapted to control the admission of an additional suf ly of air independently of the air supply through thel first-mentioned air inlet, and means for regulating the area of/said regulatable air inlet.

In testimony whereof I have hereunto set my hand in presence of two subscribing .Witnesses.

AToNr HUBER.v

Witnesses:

PAUL BLUM, HANsoN C. Coxn. 

